Centrifugal Pump Quick Startup Device with Self-Priming Chambers
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Solution Overview
Problem
Centrifugal pumps require priming after long-term idle operation, which prolongs startup time, reduces efficiency, and increases energy consumption due to the need for external auxiliary vacuum pumps, making them noisy and difficult to transport.
Innovation Solution
A quick startup device with a two-layer self-priming structure, including an upper and lower self-priming chamber and a hexagonal partition member, allows for air intake and exhaust without priming, using check valves and spiral separators to facilitate gas-liquid separation and reduce self-priming time, eliminating the need for an auxiliary motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external auxiliary vacuum pump is used for priming, then the pump can be started, but it produces a lot of noises and makes it difficult to transport the whole machine
Solution Approach 1:
The invention extracts the priming function from the external auxiliary vacuum pump and integrates it into the centrifugal pump itself through the self-priming chamber and partition member structure, eliminating the need for separate priming equipment and reducing noise
Solution Approach 2:
The invention merges the priming function with the main pump body by integrating the self-priming chamber, partition member, and check valves into a single unified structure, allowing the pump to perform both priming and pumping operations without external辅助设备
2Reliability
If an external auxiliary vacuum pump is used for priming, then the pump can be started, but it increases energy consumption
Solution Approach 1:
The invention extracts the priming function from the external auxiliary vacuum pump and integrates it into the centrifugal pump itself, eliminating the need for a second motor and reducing energy consumption
Solution Approach 2:
The invention makes the single motor drive the pump to perform multiple functions - both priming and normal pumping operations - thereby eliminating the need for a second motor and reducing overall energy consumption
3Adaptability or versatility
If the centrifugal pump operates idle for a long time, then it can be stored, but bearing assemblies and other components dissipate heat and reduce service life
Solution Approach 1:
The invention uses the self-priming structure to quickly remove air from the pump and pipeline before normal operation begins, preventing prolonged idle operation and heat dissipation that would reduce component service life
Solution Approach 2:
The invention rapidly completes the priming process through the self-priming chamber and check valve mechanism, minimizing the time the pump spends in idle operation and preventing excessive heat dissipation from bearings and components
4Reliability
If priming is required before startup, then the pump can operate normally, but it greatly prolongs the startup time and affects working efficiency
Solution Approach 1:
The self-priming chamber is pre-filled with water through the check valves and partition member structure, creating the necessary vacuum condition before startup and eliminating the need for prolonged priming operations
Solution Approach 2:
The invention rapidly completes the priming process through the self-priming mechanism, reducing the time required to establish normal operating conditions and minimizing startup delays
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device significantly reduces self-priming time, prevents damage from cavitation, and allows the pump to directly enter normal operating conditions upon restart, improving efficiency and mobility while minimizing energy loss and noise.
Implementation Method 1
a compression spring and a separation baffle are arranged in each of the accommodation grooves, wherein one end of the compression spring is connected to a bottom of the accommodation groove, the other end of the compression spring is connected to one end of the separation baffle
Implementation Method 2
a main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber, and the main shaft is driven by a motor
Implementation Method 3
an upper check valve and a lower check valve are arranged in the lower self-priming chamber
Implementation Method 4
first-stage spiral separators are arranged above the second-stage blades, and a second-stage spiral separator is arranged above the first-stage spiral separators
Data Source
AI summary
The present invention provides a quick startup device for a centrifugal pump. The device includes an upper self-priming chamber, a lower self-priming chamber, and an inlet pipe sequentially arranged from top to bottom. The upper self-priming chamber and the lower self-priming chamber are integrally mounted on the inlet pipe. A main shaft and a hexagonal partition member rotatably mounted on the main shaft are arranged on an axis of the upper self-priming chamber. A blade tip of each partition plate is closely attached to an inner wall surface of the upper self-priming chamber. Three identical accommodation grooves are provided on an inner side of the upper self-priming chamber. A spring and a separation baffle are arranged in each accommodation groove, an exhaust hole is provided on one side of each accommodation groove, and an air intake pipe is provided on the other side of each accommodation groove.